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Chinese journal of atomic and molecular physics

Decoherence of a pair of two-level atoms by dipole-dipole interaction

Zhang Deng

Published Jan 1, 2001• 0 citations
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Abstract

We study a pair of two level atoms reducible density rectangular array when atoms by dipole dipole interaction are put in a thermal reservoir. Decoherence of atoms is analyzed.

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The two-level atom is described by Pauli sign and environment is described by infinite harmonic particle thermal reservoir.A pair of two-level atoms' reducible density rectangular array is obtained when the Raman interaction of atoms with a thermal radiation field atoms by dipole-dipole interaction is put in a thermal reservoir.The paper has studied the fidelity of two-level atoms which are put in the strongly thermal radiation field.The properties of fidelity are discussed.It is shown that the two two-level atoms initially situated in different coherent superposition states,quantum information fidelities have obvious differences.